Dell 1125 Mono Laser MFP User Manual page 10

Check the paper type and quality. See
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Ensure that the paper or other material is loaded correctly and the guides are not too tight or too loose against the paper
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stack.
Curl or wave Ensure that the paper is loaded properly.
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Check the paper type and quality. Both high temperatures and humidity can cause paper curl. See
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Turn over the stack of paper in the paper tray. Also try rotating the paper 180° in the paper tray.
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Try printing to the rear cover.
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Wrinkles or creases Ensure that the paper is loaded properly.
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Check the paper type and quality. See
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Turn over the stack of paper in the paper tray. Also try rotating the paper 180° in the paper tray.
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Try printing to the rear cover.
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Back of printouts Check for leaks in the toner. Clean the inside of the printer. See
are dirty
Black pages The toner cartridge may not be installed properly. Remove the cartridge and reinsert.
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The toner cartridge may be defective and need replacing. Install a new toner cartridge. See
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The printer may require repair. Contact a service representative.
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Loose toner Clean the inside of the printer. See
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Check the paper type and quality. See
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Install a new toner cartridge. See
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If the problem persists, the printer may require repair. Contact a service representative.
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Character voids Character voids have white areas where they should be solid black:
If you are using transparencies, try another type of transparency. Because of the composition of the transparency, some
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character voids are normal.
You may be printing on the wrong surface of the paper. Turn over the stack of paper in the paper tray.
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The paper may not meet paper specifications. See
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Horizontal stripes If horizontally aligned black streaks or smears appear:
The toner cartridge may be installed improperly. Remove the toner cartridge and reinsert.
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The toner cartridge may be defective. Install a new toner cartridge. See
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If the problem persists, the printer may require repair. Contact a service representative.
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Curl If the printed paper is curled or the paper does not feed into the printer:
Turn over the stack of paper in the paper tray. Also try rotating the paper 180° in the paper tray.
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Try printing to other rear cover.
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Recommended Paper.
Recommended Paper.
Cleaning the
Cleaning the Interior.
Recommended Paper.
Replacing the Toner Cartridge.
Recommended Paper.
Recommended
Interior.
Replacing the Toner
Replacing the Toner Cartridge.
Paper.
Cartridge.